Advertising fly chaser



July 19, 1938. M. J. MURPHY ADVER'ISING'l FLY CHASER Filed Aug. 14, 19372 Sheets-Sheet 1 Attorneys July 19, 1938. M J. MUPHY 2,124,147

ADVERTIS ING FLY CHASER Filed Aug. 14, 1957 2 sheetsvsheet 2 InventorPatented July 19, 1938 UNITED STATES PATENT OFFICE 3 Claims.

This invention is what may be called an advertising fly chaser, theinvention consisting f a device adapted to be attached to a screen dooror similar closure to be operated incidental to the opening and closingof the door in a manner tending to scare away the flies from about thedoor opening to the end that fewer flies will enter through the openingincidental to the closing or opening of the door.

A further object of the invention is to provide a device of thischaracter which may be utilized for advertising purposes.

The invention together with its objects and advantages will be bestunderstood from a study of the following description taken in connectionwith the accompanying drawings wherein:

Figure l is an elevational view illustrating the application of theinvention.

Figure 2 is a plan view of a plate and stub shaft assembly for one endof the blade forming part of the device.

Figure 3 is a view similar to Figure 2 of a plate and shaft assembly forthe second end of the rotating blade.

Figure 4 is a transverse sectional view through the blade.

Figure 5 is a top plan view illustrating the application of theinvention.

Figure 6 is a side elevational View of a track.

Figure 7 is an elevational view of a bearing bracket, and

Figure 8 is an elevational view of a roller element.

Referring to the drawings by reference nu- 35 merals it will be seenthat 5 indicates the casing surrounding a door opening and 6 indicates adoor, in the present instance a screen door hinged to one side of thecasing 5 as at 'I and in the usual manner.

In accordance with the present invention there are mounted diagonally onopposite members of the frame of the door 6, proper, lower and upperbrackets 8 and 9 respectively.

Each of the brackets 8 and 9, as shown in Figure '7, consists of anapertured attaching flange IIJ through the medium of which and screws orother fastening elements II the bracket is secured to the door frame toextend diagonally of the frame. Extending from the attaching flange I0is an arm I2 having a shaft receiving opening I3.

A revolving blade is indicated by the reference numeral I4. The blade I4is formed from an oblong sheet of cardboard, metal or other suitablematerial reinforced as found desirable at its longitudinal edges. v

Secured transversely to the blade I4 at one end of the blade is a plateI5 that is provided intermediate its ends with an integral pintle orstub shaft I6 that is journaled in the opening I3 in the door bracket 8.Shaft I6 is provided With a xed collar I'I to bear against one side ofthe arm I2 of bracket 8 as shown in Figure l.

Secured transversely to a relatively opposite end of the blade I4 is aplate I8 that is provided, intermediate its ends, with an integral shaftor spindle I9 that is journaled in the opening I3 in arm I2 of bracket9. Shaft I9 is also provided with a fixed flange or collar 20 that bearsagainst one side of the arm I2 of said bracket 9.

It will thus be seen that the blade I4 is rotatably supported at oneside of door Ii and extends diagonally of the door. It will be furthernoted that the blade I4 is so supported in spaced relation to the dooras to be free to revolve incidental to a movement of the door to openedor closed position.

Projecting from the casing 5 and secured to the casing 5 at an uppercorner of the latter is a longitudinally curved track 2 I.

Track 2I, as clearly shown in Figure 6, is provided at one end topresent a pair of reversely extending, apertured attaching ilanges 22through the medium of which and screws, or other fastening elements 22athe track 2| at one end thereof is secured to the frame 5 with the topflange of the track disposed at an angle to the horizontal.

At its free end the track 2| is slightly curved downwardly to receivethe roller 24, hereinafter more fully referred to, as the door swings toa closed position from a substantially completely open position.

Secured on the free end of the spindle or stub shaft I9, and at thedesired adjustment on said end of the shaft through the medium of nuts23 is a roller 24 in the form, in the present instance, of a rubber ballsuitably apertured to accommodate the threaded end I9a of the spindle orstub shaft I9.

As shown in Figure 1 the roller 24 ridesI on the track 2l, and nuts 23binding against the roller 24 at opposite sides of the latter secure theroller 24 to the shaft I9 in a manner to cause the shaft I9 andconsequently the blade I4 to rotate with the roller, or in the presentinstance, ball 24.

It will thus be seen that as door 6 swings to either open or closedposition blade I4 will be caused to rapidly rotate, and this rotatingmoveclosure, said attachment comprising a pair of brackets adapted to bemounted on the closure at one side thereof, said brackets being disposeddiagonally to support a rotating blade diagonally of the closure, ablade provided at the respective opposite ends thereof with stub shaftsjournaled in said brackets, and means for imparting rotative movement tothe blade incidental to a swinging of the closure to open orclosedposition.

2. In combination with a casing and a door hinged to one side of thecasing, a pair of brackets disposed diagonally relative to one anotheron said door at one side of the door, a blade provided at its respectiveopposite ends with stub shafts journaled in said brackets in such amanner said blade is rotatably supported diagonally of the door and inspaced relation to said one side of the door, an arcuate rail projectingfrom said casing adjacent the upper end of the latter, and a roller onthe stub shaft at the upper end of said blade riding on said rail forimparting rotative movement to the blade incidental to a swingingmovement of the v.door to open or closed position.

3. In combination with a door casing and a door hinged at one edgethereof to one side of the casing, a fly chasing device comprising ablade disposed diagonally of the door at one side thereof and spacedfrom the door to rotate freely, an arcuate track secured at one end tothe casing at the side thereof opposite to the rst named side;of thecasing, and roller means connected with said blade at the upper end ofthe latter and riding on said track for imparting rotative movement tosaid blade incidental to an opening or closing of said door.

MARTIN J. MURPHY.

